Perkins 2806A-E18TA Operation And Maintenance Manual page 109

SEBU9074-06
Pressurized System: Hot coolant can cause seri-
ous burns. To open the cooling system filler cap,
stop the engine and wait until the cooling system
components are cool. Loosen the cooling system
pressure cap slowly in order to relieve the
pressure.
1. Stop the engine. Allow the engine to cool.
2. Loosen the cooling system filler cap slowly in order
to relieve any pressure. Remove the cooling
system filler cap.
Note: Drain the coolant into a suitable, clean
container. The coolant can be reused.
3. Drain the coolant from the cooling system to a
level that is below the hose that is being replaced.
4. Remove the hose clamps.
5. Disconnect the old hose.
6. Replace the old hose with a new hose.
7. Install the hose clamps with a torque wrench.
Note: For the correct coolant, see this Operation and
Maintenance Manual, "Fluid Recommendations".
8. Refill the cooling system. Refer to the OEM
information for further information on refilling the
cooling system.
9. Clean the cooling system filler cap. Inspect the
cooling system filler caps seals. Replace the
cooling system filler cap if the seals are damaged.
Install the cooling system filler cap.
10. Start the engine. Inspect the cooling system for
leaks.
Fuel System
The fuel system is split into two different sections,
high pressure, and low pressure. Ensure that the fuel
pressure has been purged before any parts are
removed loosened or replaced.
Check that connections and hoses are secure, check
for leaks. If parts are to be removed or tightened,
refer to the Disassembly and Assembly manual for
more information.
Overhaul (Top End)
The maintenance intervals that are listed in this
Operation and Maintenance Manual, "Maintenance
Interval Schedule" are expressed in service hours. A
more accurate figure to use is fuel consumption. Fuel
consumption corresponds more accurately to the
engine load.
Refer to this Operation and Maintenance Manual,
"Overhaul (Top End)" to determine the maintenance
interval for a top end overhaul.
A top end overhaul involves the removal, the
inspection, and the rework of the cylinder head
components. Some additional components are
replaced and serviced.
Your Perkins distributor or dealer can provide these
services and components. Your Perkins distributor or
dealer can ensure that the components are operating
within the appropriate specifications.
Note: The driven equipment may also require service
when the engine is overhauled. Refer to the literature
that is provided by the Original Equipment
Manufacturer (OEM) of the driven equipment.
If you elect to perform an overhaul without the
services of a Perkins distributor or dealer, be aware
of the following recommendations.
Cylinder Head Assembly
Inspect the cylinder head assembly. Your Perkins
distributor or dealer can provide these services and
components. Your Perkins distributor or dealer can
ensure that the components are operating within the
appropriate specifications.
The use of out-of-spec parts will cause unscheduled
downtime and/or costly repairs.
Fuel Injectors
Replace the fuel injectors. Consult your Perkins
distributor or dealer about exchanging the fuel
injectors. Your Perkins distributor or dealer can
provide these services and components.
The wear of fuel injectors is affected by the following
considerations:
• Quality of the fuel
• Quality of the filtration of the fuel
109
Maintenance Section
Overhaul (Top End)
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